随笔分类 - Tools
摘要：ou can create diffs in markdown to show what has changed in a code snippet. I use this in blog posts to highlight changed lines for readers. This work
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摘要：To compute this formula, you need to do: Actually, to make it simpler, we can do Vectorization, that formula is actually equals to: So we can code it
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摘要：For: v = zeros(10, 1); for i=1:10, v(i) = 2^i; end; # the same as indices=1:10 for i=indices, disp(i) end; while & if & break: i=1; while i <=5, v(i)
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摘要：t=[0:0.01:0.98]; y1 = sin(2*pi*4*t); plot(t, y1) If you draw tha cos function, it will replace the sin function figure to a new one y2 = cos(2*pi*4*t)
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摘要：When working in a codebase that has frontend, backend, middleware, service, and other concerns all in the same GIT repository, it can be helpful to co
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摘要：Search for "Polacode" in extensions and install it: After installer, open "Command palette" Type "polocode". Use mouse to select code you want to crea
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摘要：Mutiplate materix: Everytime you see '.' mean element wise operator. >> A = [1 2; 3 4; 5 6]; >> B = [11 12; 13 14; 15 16]; >> C = [1 1; 2 2]; >> A*C a
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摘要：Load data: load featuresX.dat who: Check how many variables in your current session: who whos: details about variables: whos Clear one variable: clear
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摘要：You can do baisc math: 5+6 32-8 1/2 2^3 1 == 2 % ans = 0 means false 1 ~=1 % 1 not equals to 2. ans = 1 means true 1 && 0 1 || 0 xor(1, 0) Change the
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摘要：Renaming every file in a directory with zsh is a common scenario when you're working with a series of related files. Using zsh's "for" loop, you can a
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摘要：Many people just drop all of their Zsh functions inside of their .zshrc and forget about it. But as your collection of functions begins to grow, you s
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摘要：A common problem you'll run into when working inside of your terminal is the desire to rename the directory you're currently in. This is achieved in 3
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摘要：pkg allows you to take any of your node projects and bundle them up into standalone apps that you can ship to people or servers that do not have node.
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摘要：Mirage JS lets you mock out production APIs directly alongside your frontend React code. You can tweak the data or force a network request to hang, so
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摘要：It can be difficult to work on multiple projects that use different versions of Node. nvm (Node Version Manger) make this easier by allowing you to do
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摘要：When you or your team work on various npm or yarn projects it gets hard to remember which one is which. This lesson shows you how to create a custom n
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摘要：You can open files into Vim directly from the terminal. This works for both single files and multiple files. In addition to reading these files into b
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摘要：You'll often find yourself going through a tutorial where you need to copy some code from a webpage and create a file and paste the contents onto your
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摘要：For example we have following code: $(el).hide() // el.style.display = 'none' $(el).forEach(() => {}) foo.hide() We want $(el).hide() replace with: el
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摘要：Are you using z? Greatly speed up your file system traversal and say goodbye to finder. Install: brew install z 2. Go the github: https://github.com/r
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